for a second to president obama talking about the environment during his inaugural address. >> obama: we will respond to the threat of climate change knowing that the failure to do so would betray our children and future generations. [ cheers and applause ] >> jennifer: well, in reality, of course, the president might have to rely on executive orders to get things done because there are so many people in the republican controlled house that don't believe in climate change at all. do you think, james, that there can be meaningful change with executive orders alone? >> this is the big question right now, isn't it? and just to step back one moment. it was important i think to mention just how prominent climate change was in that speech. i personally heard climate scientists and climate journalists cheering around the country. and it took eight sentences in the inaugural address. >> jennifer: woo! >> yeah but of course congress will be contrary to any big grand deals. i think president obama proved its first term that the epa used correctly has some muscle on these things and the courts